When a nerve root in your spine is pinched, the pain, numbness, and weakness travel along that nerve — into your arm, or down your leg. Each nerve has its own signature pattern. Use the interactive mapper below to explore which nerve causes which symptoms.
Call (219) 250-5010Pinched nerves most often occur in the neck and low back
Radiculopathy is the medical word for a pinched or compressed nerve root — the point where a nerve branches off the spinal cord and exits the spine. Because each nerve root supplies a specific zone of skin and a specific set of muscles, a pinched nerve produces a predictable, traceable pattern of radiating pain, numbness, tingling, and weakness. That pattern is often what tells Dr. Hobbs exactly which nerve is involved.
Choose neck or low back, then select a nerve level to see where pain, tingling, or numbness may travel.
Usually pinched at the C4–C5 disc
The outer shoulder and upper arm
Lifting the arm out to the side (deltoid)
Biceps reflex
A pinched C5 nerve sends its signal down the arm in this pattern. Dr. Hobbs matches your exam and MRI to confirm the level before treating it.
These are classic patterns for education. Real symptoms can overlap or vary — only an examination and imaging can confirm the level. If you have sudden severe weakness, or loss of bladder or bowel control, seek care immediately or call 911.
Exam first, imaging to confirm, nerve studies when the picture is unclear.
By testing your sensation, strength, and reflexes, Dr. Hobbs can often identify the exact nerve level from the pattern alone — the same map shown in the tool above.
An MRI confirms what is compressing the nerve — a herniated disc, bone spur, or narrowing — and at which level, so treatment is precisely targeted.
When the picture is unclear, nerve-conduction and EMG studies can confirm which nerve is irritated and rule out other causes.
The good news is that most radiculopathy improves without surgery. Dr. Hobbs starts with the least invasive approach that fits your situation and escalates only when needed.
If pain persists despite conservative care, or there is progressive weakness, relieving the pressure on the nerve is highly effective. Options include:

ABNS
Residency
M.D.As a neurosurgeon, Dr. Hobbs specializes in the nerves themselves, finding and freeing the exact root that is pinched.
Tissue-sparing, microscope- and navigation-guided techniques for smaller incisions and faster recovery.
Nonsurgical options are explored first; surgery is recommended only when it is the right answer.
University of Kentucky medical degree; neurosurgery residency at the University of Chicago, serving as chief resident.
If radiating arm or leg pain is interfering with your life, Dr. Hobbs can identify exactly which nerve is involved and build a plan to relieve it. Call today to schedule a consultation.
(219) 250-5010Monday – Friday · 8:00 AM – 4:30 PM
500 E. 109th Avenue
Crown Point, IN 46307
601 Gateway Boulevard
Chesterton, IN 46304
Your next step
Jonathan G. Hobbs, M.D. is a board-certified neurosurgeon at Lakeshore Bone & Joint Institute. For questions about cervical & lumbar radiculopathy, call the office to arrange an individual evaluation and discuss which options may be appropriate.
Consultation offices: Crown Point, Chesterton. Your symptoms, examination, imaging, and prior treatment help guide the discussion.
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